---
product_id: 460143842
title: "12v to 9v Converter DC Step Down Buck Voltage Regulator DC Transformer Power Supply 2A 18W Waterproof Car Converter Compatible with Led Light Car Truck Boat"
brand: "fbhdzvv"
price: "₱1605"
currency: PHP
in_stock: true
reviews_count: 9
category: "Fbhdzvv"
url: https://www.desertcart.ph/products/460143842-12v-to-9v-converter-dc-step-down-buck-voltage-regulator
store_origin: PH
region: Philippines
---

# 3A output current 12V to 3.7V step-down conversion Multi-layer protection system 12v to 9v Converter DC Step Down Buck Voltage Regulator DC Transformer Power Supply 2A 18W Waterproof Car Converter Compatible with Led Light Car Truck Boat

**Brand:** fbhdzvv
**Price:** ₱1605
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up smart, stay protected, and never miss a beat!

## Quick Answers

- **What is this?** 12v to 9v Converter DC Step Down Buck Voltage Regulator DC Transformer Power Supply 2A 18W Waterproof Car Converter Compatible with Led Light Car Truck Boat by fbhdzvv
- **How much does it cost?** ₱1605 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/460143842-12v-to-9v-converter-dc-step-down-buck-voltage-regulator)

## Best For

- fbhdzvv enthusiasts

## Why This Product

- Trusted fbhdzvv brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Safety First:** Integrated microprocessor guards against overvoltage, overcurrent, overheating, and short circuits for worry-free use.
- • **Versatile Compatibility:** Perfect for powering car LEDs, dashcams, radios, solar panels, and more — a must-have for tech-savvy pros on the move.
- • **Built to Brave the Elements:** Durable aluminum casing with silicone sealing ensures waterproof, heat-resistant operation in harsh environments.
- • **Power Your Devices Reliably:** Delivers a steady 3A current with 11.1W output power for uninterrupted performance.
- • **Precision Voltage Conversion:** Efficiently steps down 12V input to 3.7V output with up to 97% conversion efficiency.

## Overview

This 12V to 3.7V DC step-down buck converter delivers a robust 3A current and 11.1W power output with 90-97% efficiency. Encased in waterproof aluminum with silicone sealing, it withstands tough environments while offering comprehensive protection against voltage spikes, overheating, and short circuits. Ideal for powering automotive and portable electronics, it’s the reliable, compact solution for professionals demanding consistent, safe power on the go.

## Description

Input voltage: DC 12V Output voltage: DC 3.7V Output current: 3A Output power: 11.1W Case material:Aluminum Voltage protection: Input overvoltage and undervoltage protection Overcurrent protection: YES Output line compensation: YES Short circuit protection: YES Over temperature protection: YES Conversion efficiency: 90%~97% Wiring: Input: Red wire: input + Black wire: input - Output: Yellow wire: output + Black wire: output - Package include: 1 x DC 12v to 3.7v step down buck converter

Review: Enough juice for Tx on a Baofeng UV-5R radio - It is working great powering a Baofeg UV-5R radio from a 12 Volt power source. This allows me to have the radio permanently powered without worrying of the traditional lithium battery that requires constant recharge. It has enough power to supply current for transmit mode.
Review: Great product,small so can be mounted near or on your motorcycle battery - Wired it to use with my heated motorcycle jacket seems to work fine.Wired directly to my battery with on/off switch and a 7.5amp fuse. Product is good to use with limited space near or on your battery

## Features

- 12V- 3.7V dc converter power supply input voltage DC 12V; output voltage DC 3.7V; output current 3A; output power 11.1A.
- DC-DC 12v to 3.7v car power converter intelligent microprocessing chip, over voltage, over current, over temperature, short circuit, it can be auto protection, and can work in normal condition when restored.
- 12V to 3.7V dc converter car power voltage aluminum case and silicone sealed design make it suitable for use in various harsh environments, high conversion efficiency, low heat generation, good heat dissipation, more durable.
- 12v to 3.7v DC step down buck converter compatible with car audio, car LED display, car DVD,hard disk player,dashcam,solar panel,LED strip lights,LED display,electric fan,camera,light.
- Attention: Please install according to the the label strictly, positive pole and nagative pole can't be reversed, or the module and device might be damaged, to assure this converter has the sufficient voltage and power pls make sure the voltage and power input is enough.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09ZTC5P5W |
| Best Sellers Rank | #277,965 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,167 in Power Converters |
| Brand | FBHDZVV |
| Brand Name | FBHDZVV |
| Current Rating | 3 Amps |
| Customer Reviews | 4.4 out of 5 stars 131 Reviews |
| Manufacturer | FBHDZVV |
| Minimum Frequency | 50 Hz |
| Model | FBHDZVV-12v-3.7v |
| Mounting Type | Portable |
| Number of Items | 1 |
| Part Number | 176467 |
| Power Source | Corded Electric |
| Specification Met | CE, FCC, UL |
| UPC | 731905685930 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** FBHDZVV
- **Current Rating:** 2 Amps
- **Power Source:** Battery Powered
- **Specification Met:** CE, FCC, UL
- **UPC:** 731905685909

## Images

![12v to 9v Converter DC Step Down Buck Voltage Regulator DC Transformer Power Supply 2A 18W Waterproof Car Converter Compatible with Led Light Car Truck Boat - Image 1](https://m.media-amazon.com/images/I/51KNRgBR3-L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Enough juice for Tx on a Baofeng UV-5R radio
*by J***O on April 25, 2025*

It is working great powering a Baofeg UV-5R radio from a 12 Volt power source. This allows me to have the radio permanently powered without worrying of the traditional lithium battery that requires constant recharge. It has enough power to supply current for transmit mode.

### ⭐⭐⭐⭐⭐ Great product,small so can be mounted near or on your motorcycle battery
*by S***I on July 2, 2025*

Wired it to use with my heated motorcycle jacket seems to work fine.Wired directly to my battery with on/off switch and a 7.5amp fuse. Product is good to use with limited space near or on your battery

### ⭐⭐⭐⭐⭐ WORKS GREAT!
*by V***C on April 28, 2025*

I use this reducer on my 2000 ZX 6R Kawasaki to make the CDI box function property with my cheap Chinese aftermarket ignition. It is a great inexpensive way to replace the overpriced factory OEM ignition. I even tested it with a very sensitive voltmeter and it is exactly on point as advertise 7.4.

## Frequently Bought Together

- 12v to 9v Converter DC Step Down Buck Voltage Regulator DC Transformer Power Supply 2A 18W Waterproof Car Converter Compatible with Led Light Car Truck Boat
- 12V to 9V 1.7A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module by Envistia Mall

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**Shop now:** [https://www.desertcart.ph/products/460143842-12v-to-9v-converter-dc-step-down-buck-voltage-regulator](https://www.desertcart.ph/products/460143842-12v-to-9v-converter-dc-step-down-buck-voltage-regulator)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-07-10*